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Early detection of mild cognitive impairment utilizing ocular biomarker-based risk scoring nomogram

3 months ago
CONCLUSION: This study developed and internally validated a dynamic, nomogram-based scoring tool for early detection of MCI that integrates non-invasive retinal and visual biomarkers. The model demonstrated high discriminative power and substantial clinical net benefit. Further evaluation of the model's prognostic value in predicting further cognitive decline may support its clinical utility.
Mohammed Seid Hussen

CRISPRi screening in cultured human astrocytes uncovers distal enhancers controlling genes dysregulated in Alzheimer's disease

3 months ago
Genetic variants associated with complex traits often lie in distal enhancers. While candidate enhancers have been mapped genome wide, their functional state and gene targets in specific cell types remain unclear. Here we present AstroREG, a resource of enhancer-gene interactions in human primary astrocytes, generated by combining CRISPR inhibition (CRISPRi), single-cell RNA-seq and machine learning. By functionally testing nearly 1,000 PsychENCODE enhancers, we identified more than 150...
Nicole F O Green

Immune cell-associated DNA methylation responses to exercise in women: A bioinformatics analysis comparing pre- and postmenopausal stages

3 months ago
CONCLUSION: Postmenopausal women showed distinct epigenetic patterns in response to exercise, although these differences must be interpreted cautiously given the small premenopausal sample size. These results suggest potential immune cell-associated DNA methylation markers to inform personalized exercise strategies supporting healthy aging in women.
Guilherme da Silva Rodrigues

Breaking boundaries: Dopamine's role in prediction error, salient novelty, and memory reconsolidation

3 months ago
For memories to remain relevant and adaptive over the lifespan, modifications under specific conditions are required. Memory reconsolidation theory suggests that when a memory is reactivated, it can become labile, a state known as destabilization. This process is regulated by complex and dynamic neurobiological changes representing biological boundary conditions, which likely protect important memories from undergoing unnecessary or potentially maladaptive modifications. External cues, such as...
Olivia S O'Neill